How do you solve the quadratic #x^2+3x=0# using any method?

1 Answer
EZ as pi
Aug 9, 2016

#x=0# or #x=-3#

Explanation:

The general rule for solving a quadratic equation is to make it equal to 0 and factorise if possible.

Exactly this method can apply here.

#x^2 + 3x =0 " common factor of "x#

#color(red)xcolor(blue)((x+3))=0#

If the product of two or more factors is 0, then at least one of them is equal to 0.

#color(red)x# = 0, or #color(blue)(x+3) = 0 " "rArr x= -3#

Related questions
See all questions in Completing the Square
Impact of this question
9147 views around the world
You can reuse this answer
Creative Commons License